1 files changed, 40 insertions, 0 deletions
diff --git a/compiler/rustc_target/src/spec/windows_gnullvm_base.rs b/compiler/rustc_target/src/spec/windows_gnullvm_base.rs
new file mode 100644
index 000000000..bae007dc9
--- /dev/null
+++ b/compiler/rustc_target/src/spec/windows_gnullvm_base.rs
@@ -0,0 +1,40 @@
+use crate::spec::{cvs, LinkerFlavor, TargetOptions};
+
+pub fn opts() -> TargetOptions {
+    // We cannot use `-nodefaultlibs` because compiler-rt has to be passed
+    // as a path since it's not added to linker search path by the default.
+    // There were attemts to make it behave like libgcc (so one can just use -l<name>)
+    // but LLVM maintainers rejected it: https://reviews.llvm.org/D51440
+    let pre_link_args =
+        TargetOptions::link_args(LinkerFlavor::Gcc, &["-nolibc", "--unwindlib=none"]);
+    // Order of `late_link_args*` does not matter with LLD.
+    let late_link_args = TargetOptions::link_args(
+        LinkerFlavor::Gcc,
+        &["-lmingw32", "-lmingwex", "-lmsvcrt", "-lkernel32", "-luser32"],
+    );
+
+    TargetOptions {
+        os: "windows".into(),
+        env: "gnu".into(),
+        vendor: "pc".into(),
+        abi: "llvm".into(),
+        linker: Some("clang".into()),
+        dynamic_linking: true,
+        dll_prefix: "".into(),
+        dll_suffix: ".dll".into(),
+        exe_suffix: ".exe".into(),
+        families: cvs!["windows"],
+        is_like_windows: true,
+        allows_weak_linkage: false,
+        pre_link_args,
+        late_link_args,
+        abi_return_struct_as_int: true,
+        emit_debug_gdb_scripts: false,
+        requires_uwtable: true,
+        eh_frame_header: false,
+        no_default_libraries: false,
+        has_thread_local: true,
+
+        ..Default::default()
+    }
+}